From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Mathias Nyman <mathias.nyman@linux.intel.com>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Mathias Nyman <mathias.nyman@intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: [PATCH v1 06/10] xhci: dbc: Don't shadow error codes in store() functions
Date: Mon, 2 Oct 2023 19:16:06 +0300 [thread overview]
Message-ID: <20231002161610.2648818-6-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20231002161610.2648818-1-andriy.shevchenko@linux.intel.com>
kstrtox() along with regmap API can return different error codes
based on the circumstances. Don't shadow them when returning to
the caller.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/usb/host/xhci-dbgcap.c | 26 ++++++++++++++++++--------
1 file changed, 18 insertions(+), 8 deletions(-)
diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c
index d110eb5f1625..2332133c6581 100644
--- a/drivers/usb/host/xhci-dbgcap.c
+++ b/drivers/usb/host/xhci-dbgcap.c
@@ -978,9 +978,11 @@ static ssize_t dbc_idVendor_store(struct device *dev,
void __iomem *ptr;
u16 value;
u32 dev_info;
+ int ret;
- if (kstrtou16(buf, 0, &value))
- return -EINVAL;
+ ret = kstrtou16(buf, 0, &value);
+ if (ret)
+ return ret;
xhci = hcd_to_xhci(dev_get_drvdata(dev));
dbc = xhci->dbc;
@@ -1018,9 +1020,11 @@ static ssize_t dbc_idProduct_store(struct device *dev,
void __iomem *ptr;
u32 dev_info;
u16 value;
+ int ret;
- if (kstrtou16(buf, 0, &value))
- return -EINVAL;
+ ret = kstrtou16(buf, 0, &value);
+ if (ret)
+ return ret;
xhci = hcd_to_xhci(dev_get_drvdata(dev));
dbc = xhci->dbc;
@@ -1057,9 +1061,11 @@ static ssize_t dbc_bcdDevice_store(struct device *dev,
void __iomem *ptr;
u32 dev_info;
u16 value;
+ int ret;
- if (kstrtou16(buf, 0, &value))
- return -EINVAL;
+ ret = kstrtou16(buf, 0, &value);
+ if (ret)
+ return ret;
xhci = hcd_to_xhci(dev_get_drvdata(dev));
dbc = xhci->dbc;
@@ -1099,9 +1105,13 @@ static ssize_t dbc_bInterfaceProtocol_store(struct device *dev,
u8 value;
int ret;
- /* bInterfaceProtocol is 8 bit, but xhci only supports values 0 and 1 */
+ /* bInterfaceProtocol is 8 bit, but... */
ret = kstrtou8(buf, 0, &value);
- if (ret || value > 1)
+ if (ret)
+ return ret;
+
+ /* ...xhci only supports values 0 and 1 */
+ if (value > 1)
return -EINVAL;
xhci = hcd_to_xhci(dev_get_drvdata(dev));
--
2.40.0.1.gaa8946217a0b
next prev parent reply other threads:[~2023-10-02 16:19 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-02 16:16 [PATCH v1 01/10] xhci: dbc: Drop duplicate checks for dma_free_coherent() Andy Shevchenko
2023-10-02 16:16 ` [PATCH v1 02/10] xhci: dbc: Convert to use sysfs_streq() Andy Shevchenko
2023-10-02 16:16 ` [PATCH v1 03/10] xhci: dbc: Use sysfs_emit() to instead of scnprintf() Andy Shevchenko
2023-10-02 18:03 ` kernel test robot
2023-10-03 8:50 ` Andy Shevchenko
2023-10-03 12:30 ` Mathias Nyman
2023-10-02 16:16 ` [PATCH v1 04/10] xhci: dbc: Use ATTRIBUTE_GROUPS() Andy Shevchenko
2023-10-11 14:18 ` Mathias Nyman
2023-10-02 16:16 ` [PATCH v1 05/10] xhci: dbc: Check for errors first in xhci_dbc_stop() Andy Shevchenko
2023-10-02 16:16 ` Andy Shevchenko [this message]
2023-10-02 16:16 ` [PATCH v1 07/10] xhci: dbc: Replace custom return value with proper Linux error code Andy Shevchenko
2023-10-02 16:16 ` [PATCH v1 08/10] xhci: dbc: Use sizeof_field() where it makes sense Andy Shevchenko
2023-10-02 16:16 ` [PATCH v1 09/10] xhci: dbc: Use sizeof(*pointer) instead of sizeof(type) Andy Shevchenko
2023-10-02 16:16 ` [PATCH v1 10/10] xhci: dbc: Add missing headers Andy Shevchenko
2023-10-11 14:20 ` Mathias Nyman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20231002161610.2648818-6-andriy.shevchenko@linux.intel.com \
--to=andriy.shevchenko@linux.intel.com \
--cc=gregkh@linuxfoundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=mathias.nyman@intel.com \
--cc=mathias.nyman@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox